Bubble generation device



FIG. 1 is a perspective view of a bubble generation device according toan aspect of the disclosure;

FIG. 2 is a front view of a bubble generation device according to anaspect of the disclosure;

FIG. 3 is a side view of a bubble generation device according to anaspect of the disclosure;

FIG. 4 is another side view of a bubble generation device according toan aspect of the disclosure;

FIG. 5 is a rear view of a bubble generation device according to anaspect of the disclosure;

FIG. 6 is a top view of a bubble generation device according to anaspect of the disclosure; and,

FIG. 7 is a bottom view of a bubble generation device according to anaspect of the disclosure.

The broken phantom lines depict unclaimed subject matter only and formno part of the claimed design.

CLAIM The ornamental design for a bubble generation device, as shown anddescribed herein.